/*
   (c) Copyright 2012-2013  DirectFB integrated media GmbH
   (c) Copyright 2001-2013  The world wide DirectFB Open Source Community (directfb.org)
   (c) Copyright 2000-2004  Convergence (integrated media) GmbH

   All rights reserved.

   Written by Denis Oliver Kropp <dok@directfb.org>,
              Andreas Shimokawa <andi@directfb.org>,
              Marek Pikarski <mass@directfb.org>,
              Sven Neumann <neo@directfb.org>,
              Ville Syrjälä <syrjala@sci.fi> and
              Claudio Ciccani <klan@users.sf.net>.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/



#ifndef __DIRECT__OS__WIN32__MUTEX_H__
#define __DIRECT__OS__WIN32__MUTEX_H__

#include <direct/util.h>


#if 0
/**********  Windows Vista  ********/

/**********************************************************************************************************************/

struct __D_DirectMutex {
     CRITICAL_SECTION section;
};

/**********************************************************************************************************************/

static __inline__ DirectResult direct_mutex_lock( DirectMutex *mutex );

static __inline__ DirectResult direct_mutex_unlock( DirectMutex *mutex );

/**********************************************************************************************************************/


static __inline__ DirectResult
direct_recursive_mutex_init( DirectMutex *mutex )
{
     InitializeCriticalSection( &mutex->section );

     return DR_OK;
}

static __inline__ DirectResult
direct_mutex_init( DirectMutex *mutex )
{
     return direct_recursive_mutex_init( mutex );
}

static __inline__ DirectResult
direct_mutex_lock( DirectMutex *mutex )
{
	//if(!mutex->section.DebugInfo) InitializeCriticalSection( &mutex->section );
     EnterCriticalSection( &mutex->section );

     return DR_OK;
}

static __inline__ DirectResult
direct_mutex_unlock( DirectMutex *mutex )
{
     LeaveCriticalSection( &mutex->section );

     return DR_OK;
}

static __inline__ DirectResult
direct_mutex_trylock( DirectMutex *mutex )
{
     TryEnterCriticalSection( &mutex->section );

     return DR_OK;
}

static __inline__ DirectResult
direct_mutex_deinit( DirectMutex *mutex )
{
     DeleteCriticalSection( &mutex->section );

     return DR_OK;
}


#else

/**********  Windows 2000  ********/

/**********************************************************************************************************************/

struct __D_DirectMutex {
     HANDLE handle;
};

/**********************************************************************************************************************/

static __inline__ DirectResult
direct_recursive_mutex_init( DirectMutex *mutex )
{
     mutex->handle = CreateMutex( NULL, FALSE, NULL );

     return DR_OK;
}

static __inline__ DirectResult
direct_mutex_init( DirectMutex *mutex )
{
     return direct_recursive_mutex_init( mutex );
}

static __inline__ DirectResult
direct_mutex_lock( DirectMutex *mutex )
{
     WaitForSingleObject( mutex->handle, INFINITE );

     return DR_OK;
}

static __inline__ DirectResult
direct_mutex_unlock( DirectMutex *mutex )
{
     ReleaseMutex( mutex->handle );

     return DR_OK;
}

static __inline__ DirectResult
direct_mutex_trylock( DirectMutex *mutex )
{
     if (WaitForSingleObject( mutex->handle, 0 ))
		 return DR_LOCKED;

     return DR_OK;
}

static __inline__ DirectResult
direct_mutex_deinit( DirectMutex *mutex )
{
     CloseHandle( mutex->handle );

     return DR_OK;
}

#endif


#define DIRECT_OS_MUTEX_DEFINED

#endif

